Demountable-rim fastening for vehicle-wheels.



G. KULA;

DEMOUNTABLE RIM FASTENING FOR VEHICLE WHEELS.

APPLICATION FILED MAY 14, 1912.

1,111,523, 1 Patented se t.22,1914

8 IVITNESSES: H LVVENTOR. Qi13-ow W ZW BY ATTORNEY.

UNITED STATES R QEN OFFICE.

CHARLES KULA, OF- BAY CITY, MICHIGAN.

DEMOUNTABLE-HII I FASTENING FDR VEHICLE-WHEELS.

To all whom it may concern Be it known that I, t. "'uLEs Erna, a citizen of the 5mm ates. residing at my City, in the county of Bay and State of liiichigan. have invented certain new and useful lmin'ovements in Demountable-Rim l astenings for Vehicle-"Wheels; and I do hereby declare the following to be a full. clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the same.

This intenti rela wheels and pernnns more particuhirly to means for easily and quickly attaching and detaching demountable rims applied to vehicle wheels.

While the in ention may be applied to Various s of vehicle wheels. it perin a siecially to automobile wheels 'FS carried by demountable rims that the inlh ed tire anu rim in wh ch it carried may as. quickly removed from or -Ll to the wheel.

able rims have been which the fastening means. ecure sl to the folly band e consisted in numerous screws. and nuts, each ll y equipped with a con- -cf such clamping device's. pairs on the road, auunnobile e @Iperienced -t inconvenom the use of .ch devices. owing to the tart that a large number of se mrate.

pieces must be detached from the wheel before the demountable rim can be removed, and these pieces must all be replaced when a new rim mounted.

The objects of my invention are. first. to provide a simple device by which a demountable rim may be easily and quickly attached to or removed from the wheel. without the necessity of detaching any of the clamping devices from the wheel.

A further object is to provide a clampin; derice that shall be capable of engaging a considerable. portion of the inner periphery of the demountable rim. and of being withdrawn from the rim far enough to completely release that part'of the ,rim win" is normally engagedby the clamping device. the purpose of this feature of my invention being to release a sullicient length Specification of Letters Patent.

Application filed May 14 1912.

j: to tires for vehicle Serial No. 697.166.

of the periphery of the wheel from engagement with the rim. to enable the rim to be easily removed.

lVith these and certain other objects in view which will appear later in the speci licatimi. my invention consists in the devices described and claimed and the equivalents thereof.

In the drawings, Figure 1 is a view broken away in part. showing a tire to which m y improvement is applied: Fig; '2 is a milar view of the telly and the clamping device: Fig. 3 shows the manner of assembling the felly band. clamping device. and the demo untable rim. the parts being shown in cross-section and detached: and Fig. l is a diagrammatic view showingin an exagg rated manner for purpose of better illustration, the relative shape of the demountahle rim and. the felly of the wheel before the rim is engaged by the clamping devices.

1 represents the telly which is of usual ."nstruction. is the telly band which is of (u'dinary construction except at cer-. tain parts of the periphery of the wheel where it is depressed into an elongated notch formed in the felly.

The demountable rim -l carrying a pneuiuatir casing 5. both of which may be of any desired construction. is slipped o er the felly band 2, as shown in Fig. 1.

In carrying out my invention I apply a clamping member 6 in the depression 3. This clamping member is preferably formed of a curved strip of metal having downwardly projecting flanges T to take over the lateral edges of the felly band 2. as'indicated by dotted lines in Fig. 3. The clamping member 6 is preferably equal in length to the length of the depression 3 in band 2, and is removably titted in the depression. as shown in Figs. 1 and 2. The outer face of member 6 is curved to conform to the shape of the band '2, but is preferably of slightly less radius than the other portions of the band 2. as indicated in Fig. r, so that when pressed tightly against the depressed face of band 2. the clamping member 6 will be out of contact with the inner face of the demountable rim 4. This is indicated ina very exaggerated manner in Fig. 4. it being understood that in practice the actual clearance ma y be imperceptible, there merely be- Patented Sept. '22, 1914.

,band, either circumferentially or side'wise,

ing sufiicient clearance required to avoid the frictional contact between the clamping member andthe demountable rim.

3 Near. the ends of the clamping member 6 I mount adjusting screws 8 and 9, each screw being threaded to an internally threaded bushing 10, the upper end of which is fixed in the band 2, as shown in Fig. 3,

oneof thescrews as 8 is formed with a projecting'pin 11 and a shoulder 12, and the corresponding end of cla'mping member 6 is formed ,with'a hole 13 to receive the pin 11'. The corresponding point of the demoiintable rim is also formed with a recess 14:. The other adjusting screw 9 need not be provided with a pin 11.

.The device is assembled by partly withdrawing screw 8, placing clamping member v 6- in'the depression 3 ofband 2- withits flanges 7 overlapping the edges of the band, and the pin 11 projecting through the opening 13. The demountable rim 4 with its casing is then slipped over the band 2 in the usual frmanner, as indicated in Fig. ,4.

: Screws 8 and 9 are then tightened, forcing member -6 outwardly until it engages the aim. The tip of pin 11 enters the recess 14 'n the rim and prevents its movement on the and insures its proper placing while the clamping members are being tightened.

The recess 14 may ex tendclear through the clamping member as shown in Fig. 3, or only part way, if desired, it being only nec essary that the-recess be such as to receive the end of pin 11 to lock the demountable rim against lateral movement.

Referring to Fig. 4:, it will be seen that since the clamping members are practically out of contact with the demou'ntable rim when thg screws 8 and 9 are loosened, the

rim 4 may be easily removed. In practice I prefer-to make theclamping member 6 of considerable length as it thereby releases a larger portion of the rim and enables the rim to be removed very easily.

By the means above described I have produced a devicefor clamping demountable rims, that is simple in construction and has but few parts, none of which need necessarily be removed from the wheel when a demountable rim is being attached or detached. 'F

Having described my invention, what I claim and desire to secure by Letters Patent, is

"The combinatlon of a felly and a i felly band secured thereon, said band formed with circumferentially depressed portions, and a demountable rim carrying a casing; of a removable clamping member having a ,hole near one end, inwardly projecting flanges formed integral withsaid clamping memberadapted to take over and cover the sides of the depressed portion of said band, a pair of adjusting screws each located near 'one end of said clamping member and threaded through said felly and said-band, one of said screws formed with a projecting pin adapted to pass through the hole in said clamping member and'engage and lock said 

